Locomotive mover



, April 17, 1928.

J. B. lRWlN i LOCOMOTIVE MOVER Filed Aug. 26. 1927 2 Sheets-Sheet 1 I i w w r r N E o l iii/whil ATYORNEY April 17, 1928.

J. B. IRWIN LOCOMOTIVE MOVER Filed Aug. 26. -1927 2 Sheets-Sheet diff/win M A'ITORNEY claims.

Patented Apr. 17, 1928.

" am. a. name. ter -w i mes-ems ovEn,

Implication filed: mi 'ust as, 1927.. Serial 136-2153764.

T he. general objectof' this invention is'to provide means for moving locomotives or other heavy objects where it is impossible or not-desirable weave the locomotive or other object by its own power, the device being power operated and having means for clamping it in position adjacent the locomotive or other object to be moved.

This invention also consists in certain other features of construction and in the combination and arrangement of the several parts, to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended In describing my invention in detail, reference will be had to the accompanying drawings wherein like characters denote like j or corresponding parts throughout the several views, and in which Figure 1 is an elevation showing the device in use upon a track-and moving a 1000- motive.

Figure 2 is an end view with parts in sec- 5 tion showing the device clamped to a track.

' Figure 8 1s a sectional detail view showlng the rack means.

In these views, 1 indicates a base which supports the side pieces 2 which form bearings for the shafts 3 and 4 and which also slidably supports the rod 5 which has its ends turned up to provide the handles 6. The base supports the motor 7 the switch 8 of which has its movable part connected with the rod 5 by the bent arm 9 so that said switch can be opened and closed by moving the rod 5. The shaft of the motor carries a pinion 10 which meshes with a gear 11 on the shaft 4: and said shaft carries a pinion 12 which meshes with a gear 13 on the shaft 3. Thus said shaft 3 is rotate-d from the motor. The shaft 3 carries arack wheel 14 which meshes with a rack bar 15 which is guided in its movement by the frame16 supported by the shaft3 and having the rollers 17 therein which engage the top of the rack bar. 'A lifting link 18 is connected with the frame 16 and provides means for moving the entire device by a crane or the like.

The rack bar has attached to one end thereof a coupling knuckle 19 wherebyit can be attached to the knuckle 20 of a. locomotive, such asshown at'A in Figure 1, and its other end has a coupling link 21 attached thereto. ,Tl ie base. 1 is provided with the clamps 22 sothat itqcan be clamped to the railsittf of; a, track. I g

fr m. the foregoing. i -Wi1l' lie-se n ha when the device'is clamped to a track and the rack .bar coupled to a locomotive, the locomotive will be moved by means of the rack bar when the motor 7 is started up.

-A locomotive can be moved a' distance equal to the length of the rack bar, the length of the rack bar depending upon the diameter of the driving wheels. The rack should be of suflicient. length to movethe. locomotive one complete revolution of the driving wheels. This distance Willb sufii cient for removing or applying side rods or main rods, trying main rods for length and p device can do all the work of removing and.

applying main rods and side rods and of valve setting. 7

An advantage to be gained by usingthis device for setting valves is that this work is done with all parts in their normal position.

The device is economical as far as manufacture cost is concerned, as great care has been exercised in making as few parts as possible and making the parts ofsuch design that very little machine work is necessary. There is practically no upkeep cost if the device is properly handled.

The device can be placed in position, centers located ondriving wheels, valve run over in full travel and in cut-off and main rod length tried, in one hour. A locomotive can be moved as little as one sixteenth of an inch, if desired, and can be moved twenty feet in about two minutes.

It is thought from the foregoing description that the advantages and novel features of my invention will be readily apparent.

I desire it to be understood that I may make changes in the construction and in the combination and arrangement of the sevwithin the scope of the appended claims.

Vhat- I claim is F- i 1. A device of the class described comprising a supporting frame, means for clamping the same in posit-ion, a rack bar slidahly supported by the frame, a shaft rotatably mounted in the frame, a rack engaging Wheel thereon and engaging the bar, a motor onthe driven from the first shaft, a rack engagingwheel carried by the second shaft, a rack bar slidaloly supported in the frame and having 15 its teeth engaging the rack Wheel, a coupling knuckle on one end of the bar and a coupling link at the other end thereof.

3. A device of the class described comprising a supporting frame, a motor thereon, a shaft driven from the motor, asecond shaft driven from the first-shaft, a rack engaging wheel carried by the second shaft, a rack bar slidably supported in the frame and having its teeth engaging the rack wheel, a coupling knuckle on one end of the bar, a coupling link at the other end thereof and means carried by the frame for controlling the motion of the motor. 7 I

JAMES B. IRWIN. 

